Wahoo Kickr Move - zwift cog and click

Hi,

I bought a new wahoo move trainer a week or so ago and also bought a zwift cog and click upgrade kit as I wanted to use virtual shifting. I hadn’t realised that you can do virtual shifting with the cassette in place. Anyway, I bought the zwift cog and click and when it arrived it had the freehub on it so I followed the instructions on wahoo’s website ie this video. I opened up the zwift cog and took out the freehub. I then installed it on wahoo’s existing freehub. Was this the correct thing to do? Should I have kept the freehub in the zwift cog? Presumably I would need to take the wahoo freehub off if that is the case.

The trainer is overstating watts by approximately 12 or 13 watts consistently so something isn’t right and this is the main thing I’ve changed. I can obviously go back to the other cassette and see if that is more accurate but I’d like to use the zwift cog given I’ve bought it.

I’m aware this opens up a rabbit hole of testing possibilities but I’d like to start with the zwift cog to ensure that is the correct installation. Does the tension on the lock ring make any difference, if that is too tight could it be overstating? The first time I snapped the plastic lock ring so I’ve got a metal one in there currently (presumably does the same thing) whilst I await a replacement.

Grateful for any support anyone can offer. I’ve noticed zwift don’t have a method of contacting them at all - only zwift bot?

Thanks,

Peter

Also if I’m using wahoo’s freehub I presumably don’t need to use any of the spacer/ washer?

You can use either freehub. Anyone with the tools and inclination to remove a cassette from a freehub does not need to buy the cog with a freehub. I doubt your problem with watts overreading is related to the freehub but could be related to virtual shifting. Discussion about that over here:

Thanks I’ve had a good read through ultimately, do a factory spin down and make sure on latest firmware? Are they the main points? I’ve done both of them unfortunately.

Yes if you are affected by the issue discussed in that topic, I think you are waiting for Wahoo to do something about it.